Reservoir Tube Heater

ABSTRACT

This invention pertains to an apparatus to efficiently provide a means to heat liquid in the oil and gas fields, specifically fracking operations. The apparatus described herein provides reservoir heaters connected via reservoir transfer tubes and a heat source, located at the bottom of the apparatus, which thoroughly heats liquid as the liquid travels from the bottom of the apparatus to the top of the apparatus.

FIELD OF THE INVENTION

The invention pertains to the field of providing hot liquid, particularly water for field application in the oil and gas industry. The apparatus comprises a means for effectively and inexpensively providing heated liquid on demand through a novel heating apparatus. Use of the apparatus provides significant quantity of heated water at a fraction of the heating costs currently contemplated for field use.

BACKGROUND OF THE INVENTION

The oil and gas industry began fracturing rock deposits, i.e., fracking, in approximately 1970. Since that time fracking has developed into the preferred method of gas exploration and recovery.

Liquid, typically heated water, is used in fracking operations. To accomplish fracking, heated liquid is applied or injected into formations. A constant and inexpensive supply of liquid is needed to maintain operations. Current and conventional technology employs a heater coil and boiler design, usually used to heat liquid and has been used in oil and gas field applications from 1950 to current. Again, the liquid most typically used is water.

There is a need for a means to provide significant amounts of heated liquid, typically water, in the oil and gas field. The conventional, current means of providing heated water are often expensive, unreliable, and require multiple apparatuses.

Thus, there is a long felt need for a system or method to effectively and inexpensively provided heated liquid, particularly water, for fracking operations in oil and gas fields.

SUMMARY OF THE INVENTION

Accordingly, it is an object of embodiments of the present invention to provide a means to provide an inexpensive and effective means to heat liquid, including water in remote gas and petroleum fields. The invention, which relates to a reservoir tube heater which flows liquid, typically water, through a series of reservoirs and liquid transfer tubes with a heat source, typically propane burners underneath. Liquid flows through the reservoir tube heater from the lower portion to the upper portion, contrary to current liquid heating systems currently used in the industry.

The present invention is concerned with a new and novel means to supply heated liquid for fracking and other oil and gas filed needs. To achieve the foregoing and other objects, and in accordance with the purposes of the present invention, as embodied and broadly described herein, comprises a reservoir-tube heater apparatus comprising horizontally stacked rows of liquid transfer tubes separating a first column of horizontally layered reservoirs and an opposing second column of horizontally layered reservoirs, said horizontally stacked rows of liquid transfer tubes having a bottom row of liquid transfer tubes, a top row of liquid transfer tubes and multiple rows of liquid transfer tubes therebetween, said first column of reservoirs comprising first reservoir having an opening intake orifice and a row of multiple outlet orifices connected to the bottom row of liquid transfer tubes, a last reservoir having an exit outtake orifice and a row of inlet orifices connected to the top row of liquid transfer tubes, said bottom row of liquid transfer tubes and said top row of liquid transfer tubes connected to multiple reservoir pairs comprised of a bottom reservoir having liquid inlet orifices, a top reservoir having liquid outlet orifices and reservoir transfer tube between the top and bottom reservoirs.

Additional objects, advantages and novel features of the invention will be set forth in part in the description which follows, and in part will become apparent to those skilled in the art upon examination of the following or may be learned by practice of the invention. The objects and advantages of the invention may be realized and attained by means of the instrumentalities and combinations particularly pointed out in the appended claims.

Benefits and advantages of the present invention include, but are not limited to, providing a system, which provides a means to effectively provide heated liquid at a fraction of the energy costs to the oil and gas industry. The invention is easy to use and can function in a variety of terrains without being cost prohibitive.

BRIEF DESCRIPTION OF THE DRAWINGS

The invention can be best understood by those having ordinary skill in the art by reference to the following detailed description when considered in conjunction with the accompanying drawings in which:

FIG. 1 illustrates a perspective front and side view of one embodiment of the present invention.

FIG. 2 illustrates a side view of one embodiment of the present invention and further demonstrates the flow of liquid through the invention.

FIG. 3 illustrates a front end cross-sectional view of one embodiment of the present invention.

FIG. 4 illustrates a close up front end cross-sectional view of one embodiment of the present invention, focusing in on the upper right section of FIG. 3.

FIG. 5 illustrates a perspective front and side view of a first reservoir of one embodiment of the present invention.

FIG. 6 illustrates a perspective side view of a reservoir pair including a bottom reservoir and a top reservoir of one embodiment of the present invention.

FIG. 7 is another illustration of a perspective side view of a reservoir pair including a bottom reservoir and a top reservoir of one embodiment of.

FIG. 8 illustrates a perspective front and side view of a last reservoir of one embodiment of the present invention.

DETAILED DESCRIPTION OF THE INVENTION

Reference will now be made in detail to embodiments of the invention, examples of which are illustrated in the accompanying drawings. Throughout the following detailed description, the same reference characters refer to the same or similar elements in all figures. FIG. 1 depicts one embodiment of the present invention, the reservoir-tube heater 1. This depiction shows a broad perspective side view of one embodiment of the instant invention. The sideways directional flow of liquid through the reservoir tube heater 1 as embodied in the instant invention is depicted with dashed arrows. A liquid inlet tube 2 is shown at the bottom and a liquid outlet tube 64 is shown at the top of the reservoir-tube heater 1. Dashed arrows show the directional flow of liquid through the reservoir tube heater 1 as liquid flows into a horizontally stacked plurality of liquid transfer tubes 100.

In one embodiment, the reservoir tube heater further comprises a trailer to which the reservoir tube heater is attached. This attachment, typically on the bed of a trailer, allows for transportation of the reservoir tube heater to remote locations. In another embodiment, the reservoir heater further comprising an outer covering to surround the reservoir heater and insulate the reservoir tube heater.

FIG. 1 depicts a first column of horizontally layered reservoirs 101A and an opposing second column of horizontally layered reservoirs 101B. The plurality of liquid transfer tubes provides a means for liquid to flow form reservoirs in the first column of horizontally layered reservoirs 101A to the opposing second column of horizontally layered reservoir 101B, and vice versa, i.e. liquid flowing from 101B to 101A. A pumping unit, which is typically a power train output motor, not pictured in this figure, forces liquid flow from the inlet tube into the first reservoir 4 from the liquid inlet tube 2, multiple liquid transfer tubes 100 and horizontally layered reservoirs, and eventually out the liquid outlet tube 64. Additionally, a liquid source, not depicted in FIG. 1, provides liquid that flows into inlet tube 2.

FIG. 2, a side view of the present invention, depicts a more detailed view of the liquid flow route through the invention. From the liquid inlet tube 2 liquid into a first reservoir 4 via a liquid intake orifice 3. Liquid then flows from the first reservoir 4 through a multiplicity of parallel liquid transfer tubes into a second reservoir 8. In this side view diagram, only liquid transfer tubes 6A is shown. It is understood that there are additional liquid tubes, 6B, 6C, 6D, 6E, 6F, 6G, 6H, 61 providing a means for liquid to flow from first reservoir 4 to the second reservoir 8. The second reservoir 8 is a bottom reservoir, having non-depicted water inlet orifices of a reservoir pair. The third reservoir 10 is a top reservoir, having non-depicted water outlet orifices. In this first reservoir pair, the second reservoir 8 and third reservoir 10 are connected via transfer tube 9.

Second reservoir 8 eventually fills with liquid, originating from the first reservoir 4 via the liquid transfer tubes 6A, 6B, 6C, 6D, 6E, 6F, 6G, 6H, 6I. Liquid flows up to third reservoir 10 via reservoir transfer tube 9. From third reservoir 10, liquid flows through multiplicity of parallel liquid transfer tubes into a fourth reservoir 14. Liquid transfer tube 12A is shown, although it is understood that there are additional liquid tubes 12B, 12C, 12D, 12E, 12F, 12G, and 12H providing a means for liquid to flow from third reservoir 10 to fourth reservoir 14, a bottom reservoir of a second reservoir pair with the fifth reservoir 16 being the top reservoir of the second reservoir pair.

Fourth reservoir 14 eventually fills with liquid and liquid flows up to a fifth reservoir 16 via reservoir transfer tube 15. From fifth reservoir 16, liquid flows through multiplicity of parallel liquid transfer tubes 18A, 18B, 18C, 18D, 18E, 18F, 18G, 18H and 18I into a sixth reservoir 20, although only liquid transfer tube 18A is shown, providing a means for liquid to flow from fifth reservoir 16 to sixth reservoir 20. Reservoir 20 and reservoir 22 are the bottom and top reservoirs, respectively, of the third reservoir pair.

Sixth reservoir 20 eventually fills with liquid and liquid flows up to a seventh reservoir 22 via reservoir transfer tube 21. From seventh reservoir 22, liquid flows through multiplicity of parallel liquid transfer tubes 24A, 24B, 24C, 24D, 24E, 24F, 24G, and 24H into an eighth reservoir 26. Only liquid transfer tube 24A is shown, although it is understood that there are additional liquid tubes providing a means for liquid to flow from seventh reservoir 22 to eighth reservoir 26. Reservoir 26 and reservoir 28 are the bottom and top reservoirs, respectively, of the fourth reservoir pair.

Eighth reservoir 26 eventually fills with liquid and liquid flows up to a ninth reservoir 28 via reservoir transfer tube 27. From ninth reservoir 28, liquid flows through multiplicity of parallel liquid transfer tubes 30A, 30B, 30C, 30D, 30E, 30F, 30G, 30H and 30I into a tenth reservoir 32. Only liquid transfer tubes 30A is shown, although it is understood that there are additional liquid tubes providing a means for liquid to flow from ninth reservoir 28 to the tenth reservoir 32. Reservoir 32 and reservoir 34 are the bottom and top reservoirs, respectively, of the fifth reservoir pair.

Tenth reservoir 32 eventually fills with liquid and liquid flows up to an eleventh reservoir 34 via reservoir transfer tube 33. From eleventh reservoir 34, liquid flows through multiplicity of parallel liquid transfer tubes 36A, 36B, 36C, 36D, 36E, 36F, 36G, and 30H into a twelfth reservoir 38. Again, in this diagram and at this angle, only liquid transfer tube 36A is shown, although it is understood that there are additional liquid tubes providing a means for liquid to flow from eleventh reservoir 34 to twelfth reservoir 38. Reservoir 38 and reservoir 40 are the bottom and top reservoirs, respectively, of the sixth reservoir pair.

Twelfth reservoir 38 eventually fills with liquid and liquid flows up to a thirteenth reservoir 40 via reservoir transfer tube 39. From thirteenth reservoir 40, liquid flows through multiplicity of parallel liquid transfer tubes 42A, 42B, 42C, 42D, 42E, 42F, 42G, 42H and 42I into a fourteenth reservoir 44. Only liquid transfer tube 42A is shown, although it is understood that there are additional liquid tubes providing a means for liquid to flow from thirteenth reservoir 40 to the fourteenth reservoir 44. Reservoir 44 and reservoir 46 are the bottom and top reservoirs, respectively, of the seventh reservoir pair.

Fourteenth reservoir 44 eventually fills with liquid and liquid flows up to a fifteenth reservoir 46 via reservoir transfer tube 45. From fifteenth reservoir 46, liquid flows through multiplicity of parallel liquid transfer tubes 48A, 48B, 48C, 48D, 48E, 48F, 48G, and 48H into a sixteenth reservoir 50. Only liquid transfer tube 48A is shown, although it is understood that there are additional liquid tubes providing a means for liquid to flow from fifteenth reservoir 46 to the sixteenth reservoir 50. Reservoir 50 and reservoir 52 are the bottom and top reservoirs, respectively, of the eighth reservoir pair.

Sixteenth reservoir 50 eventually fills with liquid and liquid flows up to a seventeenth reservoir 52 via reservoir transfer tube 51, not depicted in this diagram. From seventeenth reservoir 52, liquid flows through multiplicity of parallel liquid transfer tubes 54A, 54B, 54C, 54D, 54E, 54F, 54G, 54H and 54I into an eighteenth reservoir 56. Only liquid transfer tube 54A is shown, although it is understood that there are additional liquid tubes providing a means for liquid to flow from seventeenth reservoir 52 to the eighteenth reservoir 56. Reservoir 56 and reservoir 58 are the bottom and top reservoirs, respectively, of the ninth reservoir pair. Eighteenth reservoir 56 eventually fills with liquid and liquid flows up to a nineteenth reservoir 58 via reservoir transfer tube 57, not depicted in this diagram. From nineteenth reservoir 58, liquid flows through multiplicity of parallel liquid transfer tubes 60A, 60B, 60C, 60D, 60E, 60F, 60G, and 60H into a twentieth reservoir 62. Only liquid transfer tube 60A is shown, although it is understood that there are additional liquid tubes providing a means for liquid to flow from nineteenth reservoir 58 to the twentieth reservoir 62. Liquid eventually fills the last reservoir, the twentieth reservoir 62, and flows out a liquid outlet tube 64 via a liquid exit outtake orifice 63.

FIG. 2 depicts one embodiment of the present invention, wherein opening intake orifice 3 is disposed between the liquid inlet tube 2 and the first reservoir 4 via the opening intake orifice 3. Further, FIG. 2 depicts the reservoir transfer tube 9 between second reservoir 8 and third reservoir 10, the reservoir transfer tube 15 between the fourth reservoir 14 and fifth reservoir 16, the reservoir transfer tube 21 between the sixth reservoir 20 and the seventh reservoir 22, the reservoir transfer tube 27 between the eighth reservoir 26 and ninth reservoir 28, the reservoir transfer tube 33 between the tenth reservoir 32 and the eleventh reservoir 34, the reservoir transfer tube 39 between the twelfth reservoir 38 and the thirteenth reservoir 40, the reservoir transfer tube 45 between the fourteenth reservoir 44 and the fifteenth reservoir 46, the reservoir transfer tube between the sixteenth reservoir 50 and the seventeenth reservoir 52, the reservoir transfer tube 57 between the eighteenth reservoir 56 and nineteenth reservoir 58. FIG. 2 also depicts the exit outtake orifice 63 disposed between the liquid outlet tube 64 and the twentieth reservoir 62 and the twentieth reservoir 62.

In FIG. 2, 6 represents the plurality of liquid transfer tubes, 6A, 6B, 6C, 6D, 6E, 6F, 6G, 6H and 6I. It is to be understood that the plurality of liquid transfer tubes not seen in this depiction of the instant invention. Similarly, 12, 18, 24, 30, 36, 42, 48, 54, and 60 represent similar pluralities of liquid transfer tubes. Similar to FIG. 1, the dashed arrows represent the flow of liquid through the invention as outlined above.

FIG. 2 depicts thermocouple 65 attached to liquid inlet tube 2 and thermocouple 66 attached to liquid outlet tube 66. The thermocouples allow the operator to measure the temperature between the inlet and outlet of the reservoir-tube heater. One way the operator can make adjustments to the temperature of the liquid would be by adjusting the rate of flow by adjusting the pto unit pumping the liquid through the reservoir-tube heater.

FIG. 3 shows a front cross-sectional view of one embodiment of the present invention. In this representation the liquid transfer tubes are shown in the reservoir tubes are omitted. Liquid transfer tubes 6A, 6B, 60, 60, six each, 6F, 6G, 6H, and 6I would flow from the first reservoir tube 4, not depicted, into the second reservoir tube 8, also not depicted. Liquid flowing through liquid transfer tubes 6A through 6I, 18A through 18I, 30A through 30I, 42A through 42I and 54A through 54I would flow parallel to each other and opposite to liquid flowing through liquid transfer tubes 12A through 12H, 24A through 24H, 36A through 36H, 48A through 48H and 60A through 60H.

FIG. 3 also depicts one embodiment of the instant invention wherein the liquid transfer tubes 6A through 6I are disposed offset from liquid transfer tubes 12A through 12H such that liquid transferred tube 12 they is immediately above the midpoint between liquid transfer tube 6A and 6B. As FIG. 3 shows, this pattern repeats itself. Thus, each row of liquid transfer tubes is offset by one half the distance between the liquid transfer tubes above and below and every other row of liquid transfer tubes aligns.

FIG. 3 also depicts a heat sources 300 A, 300 B, 300 C, 300 D, 300 E, 300 F, 300 G, 300 H, and 300 I underneath liquid transfer tubes 6A through 6I. In field use, these heat sources are typically propane burners that run the length of the liquid transfer tubes and provide 10,000,000+BTUs to heat the liquid transfer tubes of the reservoir-tube heater. Although not depicted in this diagram the reservoir tube heater in some embodiments is at least partially encased in a box and loaded onto a flatbed trailer. Accompanying the reservoir tube heater is a liquid propane tank to supply the energy to heat the liquid as it travels through the reservoir tube heater. Thus, via the input from the thermocouples 65 and 66, the operator may also control the temperature of the liquid by adjusting the amount of propane sent to the propane burners from the attached propane tank.

FIG. 4 depicts the upper right liquid transfer tubes of FIG. 3, namely liquid transfer tubes 54A, 54B, 60A and 60B. In one embodiment of the instant invention, 4 inches separates the center of every liquid transfer tube in a row. Thus, the distance from the center of liquid transfer tube 60A and liquid transferred tube 60B is 4 inches. Also, the distance between a line intersecting the center of every liquid transferred tube in one row, for example 60A, 60 B, etc. and a line intersecting the center of every liquid transferred tube the next closest row of liquid transfer tubes, for example, 54A, 54B, etc. is 4 inches.

FIG. 5 depicts the liquid inlet tube 2 contacting the first reservoir 4 with liquid flowing through the opening intake orifice 3. The first reservoir 4 comprises generally a rectangular cube having a first side 4A, an opposing second side 4B, a front side 4C and an opposing back side 4D, and a bottom portion 4E and a top portion 4F. Liquid flows out of the first reservoir 4 through the outlet orifices 5A, 5B, 5C, 5D, 5E, 5F, 5G, 5H, and 5I, (not depicted) located on the second side 4B of the first reservoir, into liquid transfer tubes 6A, 6B, 6C, 6D, 6E, 6F, 6G, 6H and 6I, (not depicted) respectively, as the liquid flows to the second reservoir 8.

FIG. 6 depicts first reservoir pair comprising the second reservoir 8, the third reservoir 10 and the reservoir transfer tube 9. Reservoir 8 comprises a generally rectangular cube having a first side 6A, an opposing second side 6B, a front side 6C and an opposing back side 6D, and a bottom portion 6E and a top portion 6F. Liquid flows into the second reservoir 6 through the inlet orifices 7A, 7B, 7C, 7D, 7E, 7F, 7G, 7H, and 7I, located on the first side 6A of the second reservoir 6 and from liquid transfer tubes 6A, 6B, 6C, 6D, 6E, 6F, 6G, 6H and 6I, respectively (not depicted in FIG. 6). Once the second reservoir 8 is filled, liquid flows through the reservoir transfer tube 9 into the third reservoir 10. The third reservoir 10 comprises a generally rectangular cube having a first side 10A, an opposing second side 10B, a front side 10C and an opposing back side 10D, and a bottom portion 10E and a top portion 10F. The reservoir transfer tube 9 is in contact with the top portion of the second reservoir, 6F and the bottom portion of the third reservoir 10 E. As the third reservoir 10 begins to fill with liquid from the second reservoir 8 via the reservoir transfer tube 9, the liquid flows out of liquid outlet orifices 11A, 11B, 11C, 11D, 11E, 11F, 11G, and 11H disposed on the first side 10 of reservoir 10 and into liquid transfer tubes 12A, 12B, 12C, 12D, 12E, 12F, 12G, and 12H (not depicted), respectively, as the liquid flows out of the third reservoir 10 to the fourth reservoir 14.

The first reservoir pair comprising reservoir 8 and reservoir 10 shown in FIG. 6 is identical to the third reservoir pair, comprising reservoir 20 and reservoir 22, the fifth reservoir pair, comprising reservoir 32 and reservoir 34, the seventh reservoir pair, comprising reservoir 44 and reservoir 46 and the ninth reservoir pair, comprising reservoir 56 and 58. FIG. 6 and FIG. 7 show an elongated reservoir transfer tube 9 and 15. In these depictions, the reservoir transfer tubes have an exaggerated length. In practice, the length of the reservoir transfer tube would be shorter. The shorter length would be applicable for all reservoir transfer tubes in the reservoir tube heater.

FIG. 7 depicts the second reservoir pair comprising the fourth reservoir 14, fifth reservoir 16 and reservoir transfer tube 15. Reservoir 14 comprises a generally rectangular cube having a first side 14A, an opposing second side 14B, a front side 14C and an opposing backside 14D, and a bottom portion 14E and a top portion 14F. Liquid flows into the fourth reservoir 14 through the inlet orifices 13A, 13B, 13C, 13D, 13E, 13F, 13G, and 13H, located on the second side 14B of the fourth reservoir 14 and from liquid transfer tubes 12A, 12B, 12C, 12D, 12E, 12F, 12G, and 12H (not depicted), respectively. Once the fourth reservoir tube 14 is filled, liquid flows through the reservoir transfer tube 15 into the fifth reservoir 16. The fifth reservoir 16 comprises a generally rectangular cube having a first side 16A, an opposing second side 16B, a front side 16C and an opposing backside 16D, and a bottom portion 16E and a top portion 16F. The reservoir transfer tube 15 is in contact with the top portion 14F of the second reservoir 14 and the bottom portion 16E of the fifth reservoir 16. As the fifth reservoir 16 begins to fill with liquid from the fourth reservoir 14 via the reservoir transfer tube 15, the liquid flows out of liquid outlet orifices 17A, 17B, 17C, 17D, 17E, 17F, 17G, 17H and 17I disposed on the second side 16B of the fifth reservoir 16 and into liquid transfer tubes 18A, 18B, 18C, 18D, 18E, 18F, 18G, 18H, and 18I respectively (not depicted in FIG. 7), as the liquid flows out of the fifth reservoir 16 to the sixth reservoir 20. The liquid flow scheme for reservoir 14 and reservoir 16 shown in FIG. 6 is identical to the liquid flow scheme for reservoir 26 and reservoir 28, reservoir 38 and reservoir 40, and reservoir 50 and reservoir 52.

The second reservoir pair comprising reservoir 14 and reservoir 16 shown in FIG. 7 is identical to the fourth reservoir pair, comprising reservoir 26 and reservoir 28, the sixth reservoir pair, comprising reservoir 38 and reservoir 40, and the eighth reservoir pair, comprising reservoir 50 and reservoir 52.

FIG. 8 depicts the liquid outlet tube 64 contacting the last reservoir, twentieth reservoir 62, and the exit outtake orifice 63. The twentieth reservoir 62 comprises generally a rectangular cube having a first side 62A, an opposing second side 62B, a front side 62C and an opposing back side 62D, and a bottom portion 62E and a top portion 62F. Liquid flows into the twentieth reservoir 62 through the inlet orifices 61A, 61B, 61C, 61D, 61E, 61F, 61G, and 61H, located on the second side 62B of the first reservoir 62, from into liquid transfer tubes 60A, 60B, 60C, 60D, 60E, 60F, 60G, 60H and 60I (not depicted), respectively.

The flow of the liquid from the bottom of the reservoir tube heater apparatus allows the initial liquid flowing into the apparatus to be heated most at first. As the liquid continues to flow up through the multiplicity of horizontally layered reservoirs and horizontally stacked rows of liquid transfer tubes, the liquid continues to be heated because the heat from the heat source rises. Thus, the design of the instant invention allows for energy conservation and optimization to effectively heat with much less energy than is currently used to heat water in fracking operations. As discussed throughout this application the work liquid is most often to include water, which is most often used in fracking applications.

It is believed that the apparatus of the present invention and many of its attendant advantages will be understood from the foregoing description. It is also believed that it will be apparent that various changes may be made in the form, construction, and arrangement of the components without departing from the scope and spirit of the invention and without sacrificing its material advantages. The forms described are merely exemplary and explanatory embodiments thereof. It is the intention of the following claims to encompass and include such changes. 

What is claimed is:
 1. A reservoir-tube heater apparatus comprising horizontally stacked rows of liquid transfer tubes separating a first column of horizontally layered reservoirs and an opposing second column of horizontally layered reservoirs, said horizontally stacked rows of liquid transfer tubes having a bottom row of liquid transfer tubes, a top row of liquid transfer tubes and multiple rows of liquid transfer tubes therebetween, said first column of reservoirs comprising first reservoir having an opening intake orifice and a row of multiple outlet orifices connected to the bottom row of liquid transfer tubes, a last reservoir having an exit outtake orifice and a row of inlet orifices connected to the top row of liquid transfer tubes, said bottom row of liquid transfer tubes and said top row of liquid transfer tubes connected to multiple reservoir pairs comprised of a bottom reservoir having liquid inlet orifices, a top reservoir having liquid outlet orifices and reservoir transfer tube between the top and bottom reservoirs.
 2. The reservoir-tube heater apparatus of claim 1 further comprising a liquid inlet tube connected to said opening intake orifice.
 3. The reservoir-tube heater apparatus of claim 1 further comprising a liquid outlet tube connected to said exit outtake orifice.
 4. The reservoir-tube heater of claim 1, wherein every other row of each of said stacked row of liquid transfer tubes is offset from the row immediately above and below it.
 5. The reservoir tube heater of claim 1, further a means to force liquid to flow through the opening intake orifice, first reservoir, the bottom row of liquid transfer tubes, multiple reservoir pairs and multiple rows of liquid transfer tubes between said reservoir pairs, a last reservoir and a exit outtake orifice.
 6. The reservoir tube heater of claim 5, wherein the means to force liquid to flow is a power take off unit.
 7. The reservoir tube heater of claim 1, further comprising a heat source underneath the lowest row of liquid transfer tubes.
 8. The reservoir tube heater of claim 6, wherein the heat source is one or more propane burners.
 9. The reservoir tube heater of claim 2, further comprising a thermocouple in contact with the liquid inlet tube.
 10. The reservoir tube heater of claim 3, further comprising a thermocouple in contact with the liquid outlet tube.
 11. The reservoir tube heater of claim 1, further comprising a trailer attached to said reservoir tube heater for transportation of the reservoir tube heater to remote locations.
 12. The reservoir heater of claim 1, further comprising an outer covering to surround the reservoir heater and insulate the reservoir tube heater. 